Undercover Boss The new episode "Undercover Boss: Epic Employees" catches up with some of the memorable workers from the show's run so far to find out where they are now and how their encounters with their undercover bosses changed their lives. 8 p.m. CBS

Fashion Star In the season finale contestants eliminated in previous weeks come back to help the final three designers create a collection for each of the retailers. 8 p.m. NBC

Kitchen Nightmares Chef Ramsay helps the owners of Amy's Baking Company in Scottsdale, Ariz., in the season finale. to 8 p.m. Fox

Vegas Lamb (Dennis Quaid) joins forces with his one-time enemy Savino (Michael Chiklis) to take down Gainsley (Michael Ironside) for the death of his wife and the attempted murder of Katherine (Carrie-Anne Moss) in the season finale. 9 p.m. CBS

Touch As Aster Corps comes closer to completing the number sequence that could propel it to the top of the world economy, Farington (Frances Fisher) endangers the lives of Jake and Amelia (David Mazouz, Saxon Sharbino) in the season finale. 9 p.m. Fox

Blue Bloods The Reagans band together against the leader of a gang responsible for the murder of someone close to them, with Danny (Donnie Wahlberg) focusing his efforts on the man's girlfriend, while a second crisis catches Frank (Tom Selleck) off guard in the season finale. 10 p.m. CBS

Maron Denis Leary is a guest on the podcast in this new episode. 10 p.m. IFC